A 2 value means you'll need to concentrate your draw structure somehow with 2s, which besides Law Dogs, aren't exactly prevalent dude wise yet. See Darguth's deck from November 26th to see a good example.

Overall:

A bullet boost, protection from bullet reduction, and making sure your stud stays a stud is all yours for 2 ghost rock. Just like Pearl Handed Revolver, in the right hands, can be pretty effective.